SKY77912-21 [SKYWORKS]

Telecom Circuit, 1-Func, 5.50 X 5.30 MM, 0.80 MM HEIGHT, GREEN, PLASTIC, PACKAGE-38;


型号：	SKY77912-21
厂家：	SKYWORKS SOLUTIONS INC.
描述：	Telecom Circuit, 1-Func, 5.50 X 5.30 MM, 0.80 MM HEIGHT, GREEN, PLASTIC, PACKAGE-38 电信电信集成电路
文件：	总2页 (文件大小：84K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

PRODUCT SUMMARY

SKY77912-21 Tx-Rx Front-End Module for Quad-Band GSM /

GPRS / EDGE w/ 10 Linear TRx Switch Ports, Dual-Band

TD-SCDMA, and TDD LTE Band 39

Applications

Description

SKY77912-21, a Tx / Rx Front-End Module (FEM), offers the complete

transmit VCO-to-Antenna and Antenna-to-receive SAW filter solution for

advanced cellular handsets comprising quad-band GSM, GPRS, EDGE

multi-slot operation, and TD-SCDMA and TDD LTE transmission. The

FEM fully enables broadband 3G/4G RF switch-through, outward

switching of the Power Amplifier (PA) RF inputs, ten transmit / receive

(TRx) antenna switch ports, and an integrated directional coupler.

• Cellular handsets encompassing Quad-Band GSM/EDGE,

Dual-Band TD-SCDMA, and TDD LTE

- Class 4 GSM850/900

- Class 1 DCS1800/PCS1900

- Class 12 GPRS multi-slot operation

- Linear EDGE operation

- TD-SCDMA Bands 34/39

- TDD LTE Band 39

A new multi-standard CMOS controller provides PA band/mode

selection and bias control, including the Mobile Industry Processor

Interface (MIPI^®) RFFE logic, and switch decoder circuitry. The controller

supports user-optional control of linear RF or analog VRAMP of the

GMSK envelope. A distinct MIPI register mapping included in this Data

Sheet provides for each of these control paradigms, including

associated approaches to PA and switch control.

Features

• Small, low profile package

- 5.5 mm x 5.3 mm x 0.8 mm Max

- 38-pad configuration

• MIPI^®RFFE control with dual-standard support

- User-selectable register mappings

- Linear or VRAMP-based GMSK power control

The Heterojunction Bipolar Transistor (HBT) PA blocks are fabricated in

Gallium Arsenide (GaAs). The low band (LB) PA transmits in the

GSM850/900 bands. The high band (HB) PA supports DCS, PCS, TD-

SCDMA bands 34/39, and TDD LTE band 39. The HBT, switch, and

controller die, and passive components mount onto a multi-layer

laminate substrate and the entire assembly encapsulated with plastic

over-mold.

• RF ports internally matched to 50 Ω load

• High Efficiency (inclusive of coupler)

• Tx harmonics below –40 dBm

• Supports APT, buck DC-DC supply

Built into the SKY77912-21 is a complete features set for state-of-the-

art performance and minimal phone board complexity, including PA

over-voltage and over-current protection, 50 ohms matching and zero

DC offset on all RF pins, TRx high linearity/low loss switching and high

off-state isolation, integrated directional coupler, IEC ruggedness at

antenna output, LB and HB input switching for alternate RF routing

3G/4G Tx paths, power supply pads shared between LB and HB, and

ultra-low leakage currents for long standby times.

• Ten low insertion loss/high linearity TRx switch ports

• RF input switching to 3G/4G path

• Integrated broadband directional coupler

• Integrated noise suppression notch filter for WiFi

coexistence

• Built-in IEC-compliant antenna ESD protection

• High impedance control inputs: 20 µA, maximum

Selecting the linear-GMSK operation standard disables VRAMP input so

all PA biasing depends only on MIPI mode selection. The transmitted

envelope is a linear function of RF input.

• Current limiting and over-voltage protection for

ruggedness and extended battery life

Selecting VRAMP-enabled operation, the PA controller provides VRAMP

control of the GMSK envelope and reduces sensitivity to input drive,

temperature, power supply, and process variations. Skyworks’ Finger-

Based Integrated Power Amplifier Control (FB-iPAC) minimizes output

power variation into mismatch. In EDGE and TD-SCDMA / TDD LTE

linear modes, VRAMP voltage and MIPI-based bias settings jointly

optimize PA linearity and efficiency.

• Power control circuitry built-in for improved TRP variation

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

203476A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 3, 2015

Ordering Information

Product Name

Order Number

Evaluation Board Part Number

SKY77912-21 Tx-Rx Front-End Module

SKY77912-21

N/A

Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by

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information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to

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Customers are responsible for their products and applications using Skyworks products, which may deviate from published specifications as a result of design defects, errors, or operation of

products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for

applications assistance, customer product design, or damage to any equipment resulting from the use of Skyworks products outside of stated published specifications or parameters.

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reference.

SKY77912-21 [SKYWORKS]

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